Spy Week: How to Develop Sherlock Holmes-Like Powers of Observation and Deduction(via @Lifehacker) »
If there’s one spy skill we all envy, it’s the Sherlock Holmes-like ability to quickly read a situation and come up with a theory that explains it (like the toothpaste stain that reveals your co-worker overslept, or the nervous twitch that shows your friend drank too much).
